Read the sign with one formula
From the trader perspective: funding effect = position value × rate × direction coefficient. Define long as +1 and short as −1; a positive result is a payment and a negative result is a receipt.
For a 10,000 USDT position at −0.02%, the long result is −2 USDT, a 2 USDT receipt. The short result is +2 USDT, a 2 USDT payment.
Why rates become negative
A negative rate often reflects a skew between perpetual price, index price and positioning demand. Paying the long side can encourage balancing positions and help the contract track its index.
It is not a free platform subsidy and it does not guarantee the next rate will remain negative. Premium, positioning and the rate can change together during a reversal.
Direction and sign, laid out in full
Two things fix the direction of funding: the sign of the rate and the side of the position. The table covers all four combinations for a 10,000 USDT position over one interval; positive means you pay, negative means you receive.
Remembering it as a single product prevents sign errors: position value × rate × side coefficient, where long is +1 and short is −1. A negative rate on a short multiplies two negatives into a positive, so the short pays. That is the cell people invert most often.
Funding = position value × rate per interval × side coefficient (long +1, short −1)| Rate per interval | Long (+1) | Short (−1) |
|---|---|---|
| +0.02% | Pays 2 USDT | Receives 2 USDT |
| +0.01% | Pays 1 USDT | Receives 1 USDT |
| −0.01% | Receives 1 USDT | Pays 1 USDT |
| −0.02% | Receives 2 USDT | Pays 2 USDT |
What you receive and what you risk are not the same order of magnitude
A 10,000 USDT long receives 2 USDT per interval at −0.02%. On that same position, every 0.01% of price movement is 1 USDT of unrealised P&L. One interval of funding income is therefore worth 0.02% of price.
Minute-scale movement in BTC perpetuals routinely exceeds that even in quiet conditions. Treating an available rate as a reason to hold means accepting price risk two to three orders of magnitude larger than the income.
The only structure in which received funding becomes the primary return is one where price risk has been hedged away — an offsetting exposure in spot or an inverse contract. That is a separate strategy with its own basis, borrowing, transfer and counterparty risk, and it cannot be approximated by holding one side and collecting.
| Item | Magnitude per interval on 10,000 USDT |
|---|---|
| Funding received at −0.02% | 2 USDT |
| Equivalent price movement | 0.02% |
| Round-trip taker fees (0.05% × 2) | 10 USDT, or five intervals of income |
| A 1% adverse move | 100 USDT, or fifty intervals of income |
Do not go long only to collect funding
A 2 USDT receipt on a 10,000 USDT long is offset by a 0.02% adverse price move before fees and slippage.
A funding-arbitrage strategy also involves spot or derivative hedges, basis, borrowing, transfers, execution and venue risk. An unhedged long is not market neutral.
Check before settlement
Distinguish an estimated next rate from a previously settled rate. Record symbol, direction, settlement time and position value instead of copying only a negative percentage.
Reconcile the final amount in account funding history, and update interval counts if the venue changes settlement frequency.
Official sources and calculation boundary
The direction of payment follows OKX's funding FAQ. The sign table is a direct consequence of that mechanism, but the rate itself is set again each interval, so no cell in it guarantees anything about the next one.
Next checks in this series
Funding rates
Long funding cost over three intervals, seven days and thirty days
Reproducible scenario guide
Review methods
A reproducible monthly funding-rate review for BTC, ETH and SOL
Reproducible scenario guide
Liquidation and margin risk
BTC at 5x, 10x, 20x and 50x: how liquidation risk changes
Reproducible scenario guide
Frequently asked questions
Does a long always receive the full amount when funding is negative?
Settlement normally follows platform rules, but the live position, final rate and venue mechanism determine the actual amount. Use the account ledger.
Does receiving funding mean the trade is profitable?
No. Price PnL, trading fees and slippage can be much larger than the funding receipt.
How long do negative rates last?
No rule guarantees any duration. The rate is set again each interval from market conditions; it can hold the same sign for many intervals or flip in one. The longest same-sign run in a monthly review describes persistence better than a single reading, but it remains history, not a commitment about the next interval.
Can two venues show opposite signs at the same time?
Yes. Perpetual prices, index composition and rate mechanics differ between venues, and short-lived sign differences are not unusual. It is another reason cross-venue comparisons need observations from a close time window; otherwise they compare two different moments of the market.